PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84465Seat,valve

Reidville Hydraulics & Mfg Inc · NSN 4820-00-739-4694 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-739-4694 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-739-4694. Primary manufacturer part number: 84465.
Features
  • Seat,valve — FSC 4820
  • Body Inside Diameter: 0.188 INCHES NOMINAL IN
  • Thread Class: 2B SINGLE THREADED PORTION
  • Flange Seat to Disk End Height: 0.125 INCHES NOMINAL IN
  • Thread Length: 0.625 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Style Designator: THREADED FLANGED
  • Material: STEEL OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-739-4694, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Reidville Hydraulics & Mfg Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-739-4694
Primary Part Number84465
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerReidville Hydraulics & Mfg Inc
StatusACTIVE
Body Inside Diameter0.188 INCHES NOMINAL IN
Thread Class2B SINGLE THREADED PORTION
Flange Seat to Disk End Height0.125 INCHES NOMINAL IN
Thread Length0.625 INCHES NOMINAL SINGLE THREADED PORTION IN
Style DesignatorTHREADED FLANGED
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION
Nominal Thread Size0.375 INCHES SINGLE THREADED PORTION IN
Thread Quantity Per Inch16 SINGLE THREADED PORTION
Seating Surface ShapeFLAT
Flange Diameter0.469 INCHES NOMINAL IN
Under Flange Height1.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2925-00-090-491530054 INTERCHANGEABLE
Harness Asy
Vse Aviation, Inc.
5315-00-198-59872058 INTERCHANGEABLE
Pin,tapered,plain
Bath Iron Works Corporation
Cross-Reference Index
Part NumberManufacturer
84465 Eaton Aerospace, Llc Dba Jackson South (USA)
84465 PRIMARY Reidville Hydraulics & Mfg Inc (USA)
Related Parts
2925-00-090-4915INTERCHANGEABLE
HARNESS ASY
30054
5315-00-198-5987INTERCHANGEABLE
PIN,TAPERED,PLAIN
2058

Frequently Asked Questions

What is NSN 4820-00-739-4694?

NSN 4820-00-739-4694 is a Seat,valve, manufactured by Reidville Hydraulics & Mfg Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-739-4694?

NSN 4820-00-739-4694 has 2 cross-referenced part numbers: 84465 (Eaton Aerospace, Llc Dba Jackson South), 84465 (Reidville Hydraulics & Mfg Inc).

What NSN replaces 4820-00-739-4694?

There are 2 known substitutes for 4820-00-739-4694: 2925-00-090-4915, 5315-00-198-5987. Verify interchangeability with system specifications before substitution.

What are the specifications of 84465?

Key specifications for 84465: Body Inside Diameter: 0.188 INCHES NOMINAL IN; Thread Class: 2B SINGLE THREADED PORTION; Flange Seat to Disk End Height: 0.125 INCHES NOMINAL IN; Thread Length: 0.625 INCHES NOMINAL SINGLE THREADED PORTION IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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